Sleep regulator

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To make your flight as short as possible, our flight attendants are switching on the sleep regulator, which will regulate your sleeping during the flight.

First, props to screenwriters Luc Besson & Robert Mark Kamen for absolutely nailing annoying airline doublespeak. “Regulate your sleeping” means “knock you unconscious,” and even when Korben raises a finger to interject, the flight attendant ignores him and presses a button to begin “regulating his sleep.”

Given that ignoring passenger interruptions is standard operating procedure, it’s a nice design feature that the berths are horizontal and less than a meter tall. Even if a passenger was somehow all the way at the top of the berth, the fall to the cushy flooring would likely do them no harm.

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The panel has four rounded rectangles: One for each person who might be in the berth? On approach, an amber, underlit toggle button is already on. She presses an adjacent toggle button, which glows yellow, and Korben passes out immediately. Three pairs of steady lights illuminate on the right side of the panel, one pair yellow, the other two red, but it is not clear what these indicate.

On arrival to the planet Fhloston Paradise, the attendants press the yeloow buttons and the passengers awake immediately.

Analysis

Let me be blunt. The panel is a pretty crap interface, with no labeling to indicate what the buttons mean and no security to prevent mischievous passengers from messing with other passengers. (Imagine the poor kid trapped inside and subject to the button flicking of a sibling.) There’s no clear medical monitoring on the outside, which you’d think would be vital with any interface that affects biology like this. Even if a centralized station had the monitoring details elsewhere on the ship, anyone passing by should get some indication of what’s happening.

Admittedly, this is an interface with complex attention-getting needs. The attendants need to know that the regulator is working, and that bears a light. But the attendants also need to know when something is medically trending poorly or just plain failing, and that also bears a light. It would be important to clearly distinguish these signals, since confusing one for the other could be deadly.

Better would have been a well labeled system-is-operating signal facing the attendant when she is standing at the panel, and another well-labeled, blinking, loud, system-needs-attention signal that can be seen down either end of the hallway. Let us pray that they never, ever remake this film, but if there’s a directors cut, this interface could use a makeover.

Alien Stasis Chambers

The alien stasis chambers have recessed, backlit touch controls. The shape of each looks like a letterform. (Perhaps in Proto-Indo-European language that David was studying at the start of the film?) David is able to run his fingers along and tap these character shapes in particular sequences to awaken the alien sleeping within.

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The writing/controls take up quite a bit of room, on both the left and right sides of the chamber near the occupant’s head. It might seem a strange decision to have controls placed this way, since a single user might have to walk around the chamber to perform tasks. But a comparison of the left and right side shows that the controls are identical, and so are actually purposefully redundant. This way it doesn’t matter which side of the chamber a caretaker was on, he could still operate the controls. Two caretakers might have challenges “walking over” each other’s commands, especially with the missing feedback (see below).

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Having the writing/controls spread over such a large area does seem error prone. In fact in the image above, you can see that David’s left hand is resting with two fingers “accidentally” in the controls. (His other hand was doing the button pressing.) Of course this could be written off as “the technology is not made for us, it’s made for an alien race,” but the movie insists these aliens and humans share matching DNA, so apart from being larger in stature, they’re not all that different.

Two things seem missing in the interface. The first is simple feedback. When David touches the buttons, they do not provide any signal that his touch has been received. If he didn’t apply enough pressure to register his touch, he wouldn’t have any feedback to know that until an error occurred. The touch walls had this feedback, so it seems oddly missing here.

The second thing missing is some status indicator for the occupant. Unless that information is available on wearable displays, having it hidden forces a caretaker to go elsewhere for the information or rely solely on observation, which seems far beneath the technological capabilities seen so far in the complex. See the Monitoring section in Chapter 12 of Make it So for other examples of medical monitoring.

Audio Syringe

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David uses this device when Shaw begins to double over from the pain of the alien growing in her womb. It is a palm-sized cylinder with a large needle sticking out one end and a yellow button on the other. To administer it, he jams it into her shoulder, depressing the yellow button with his thumb, and holds it there until the spraying sound coming from it ceases.

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This is not a hypospray (as described in Chapter 12, Medicine, of the book), which would not have a needle, so where is the sound coming from? It might be an audio augmentation to let the administrator know. This would be a reasonable sound, as it gives sense of pressure releasing. But there should be some clear signal—like a soft double-beep—when the doseage is complete, less it be removed too soon for misinterpreting the audio signal.

Table Scanner

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After sterilizing the alien head, it is slid out to a table scanner big enough for a crew member to lie upon. Ford brushes the head with some powered material, and says, “Scan.” In response, David presses a button on a nearby illuminated keypad before him, and an arch with sensors slides back and forth over the table on which the head rests. Ford looks at the scan on screen and says, “Dr. Shaw, look at this.”

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The readout screen has a 3D floating pixel display like in the navigation and Neuro-Visor. In this case the scan reveals that the exterior of the object is not an exoskeleton but a suit. On the right side of the screen is a set of curiously organic graphic interface elements seen only on the sterilizer and otherwise unlike anything else in the film.

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There isn’t a clear reason for this change in visual style, but it stands out, so bears a bit of notice. From a readout of 92% “EF-09/8 CONV.” there are lines that flow, like plant leaves, to other labels reading “PROCESSING DATA” and “SCAN HEADS STABLE.” The organic lines drop from the top of the screen to a circular element. These lines look like delicate filaments, and even overlap one another, before connecting to the circle. To the right of this circle more filaments drift from an arc to the upper third of a pie chart. And to the left of the large circle, more filaments run in organic arcs to a smaller circle reading “RKJ-RSSN RATIO”, with a bar chart augmented with numerical data, before drifting out to another circle reading 8.7, and finally arcing off to the lower right hand side of the screen. Comparing this interconnected set of GUI elements to anything else in the movie is a stark contrast. Other interfaces have horizontal and vertical lines, connected with regular filleted corners. The swoopy shapes are lovely, though a minor criticism might be that it feels a bit decorative for a scientific application.

The main criticism for this display is not its GUI but its placement. It requires the scientist to crane her neck to see the results, turning her field of vision far away from the object she’s examining. If there were sudden changes in its appearance, she’d likely miss them. Better would be to have the screen above the table or attached to its edge so a shift from object to scan can happen with a quick glance, and that would let the object remain in her peripheral vision so she would be more likely to notice any change.

Later this same scanning table is used on Dr. Shaw. No attempt is made to fit her into the de-sterilizer, though the point of the quarantine is to determine possible contagion. After a scan, he sees a VP readout that confirms she is pregnant with Halloway’s posthumous, alien baby.

Alien head sterilizer

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In the lab, Shaw and Ford investigate the alien head from the complex. They first seek to sterilize it. Though we don’t see how the process is initiated, after it is, a “dumb waiter” raises the head from some storage space to a glass-walled chamber where it is sprayed with some white mist. A screen displays an animation of waves passing along the surface of the head.

When the mist clears, a screen reads “SAMPLE STERILE. NO CONTAGION PRESENT,” which Ford dutifully repeats even though Shaw has a screen that says the exact same thing. Obscure metrics and graphs fill the edges of the screen.

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It might have been tempting for the designers to simply supply the analysis, i.e., “no contagion,” but by providing the data from which the analysis derives, the scientists can check and verify the data for themselves, so the combination is well considered.

There are several problems with this sterilization system.

The text of the analysis reads well and unambiguously, but the graphics would be more informative if they indicated their values within clear ranges. As they are, they push the burden of understanding the context of the values onto the scientists’ memories. If this was a very commonplace activity, this might not be much of an issue.

More importantly are the problems with the industrial design. First, this device seems surprisingly head-sized. Wouldn’t a crewmember be the most likely thing they’d have to sterilize? Shouldn’t it be bigger? But moreover, this device is in the wrong place on the ship. If it was infected with an alien pathogen, sterilizing it here is already too late. The pathogen has already spread everywhere between the airlock, the storage space, and on the hands of whoever had to move it between. It would be better if possibly unsterile material could be loaded into a decontamination system outside the ship, and then only once sterilized then pass through to the interior.

MedPod

Early in the film, when Shaw sees the MedPod for the first time, she comments to Vickers that, “They only made a dozen of these.” As she caresses its interface in awe, a panel extends as the pod instructs her to “Please verbally state the nature of your injury.”

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The MedPod is a device for automated, generalized surgical procedures, operable by the patient him- (or her-, kinda, see below) self.

When in the film Shaw realizes that she’s carrying an alien organism in her womb, she breaks free from crewmembers who want to contain her, and makes a staggering beeline for the MedPod.

Once there, she reaches for the extended touchscreen and presses the red EMERGENCY button. Audio output from the pod confirms her selection, “Emergency procedure initiated. Please verbally state the nature of your injury.” Shaw shouts, “I need cesarean!” The machine informs her verbally that, “Error. This MedPod is calibrated for male patients only. It does not offer the procedure you have requested. Please seek medical assistance else–”

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I’ll pause the action here to address this. What sensors and actuators are this gender-specific? Why can’t it offer gender-neutral alternatives? Sure, some procedures might need anatomical knowledge of particularly gendered organs (say…emergency circumcision?), but given…

  • the massive amounts of biological similarity between the sexes
  • the needs for any medical device to deal with a high degree of biological variability in its subjects anyway
  • most procedures are gender neutral

…this is a ridiculous interface plot device. If Dr. Shaw can issue a few simple system commands that work around this limitation (as she does in this very scene), then the machine could have just done without the stupid error message. (Yes, we get that it’s a mystery why Vickers would have her MedPod calibrated to a man, but really, that’s a throwaway clue.) Gender-specific procedures can’t take up so much room in memory that it was simpler to cut the potential lives it could save in half. You know, rather than outfit it with another hard drive.

Aside from the pointless “tension-building” wrong-gender plot point, there are still interface issues with this step. Why does she need to press the emergency button in the first place? The pod has a voice interface. Why can’t she just shout “Emergency!” or even better, “Help me!” Isn’t that more suited to an emergency situation? Why is a menu of procedures the default main screen? Shouldn’t it be a prompt to speak, and have the menu there for mute people or if silence is called for? And shouldn’t it provide a type-ahead control rather than a multi-facet selection list? OK, back to the action.

Desperate, Shaw presses a button that grants her manual control. She states “Surgery abdominal, penetrating injuries. Foreign body. Initiate.” The screen confirms these selections amongst options on screen. (They read “DIAGNOS, THERAP, SURGICAL, MED REC, SYS/MECH, and EMERGENCY”)

The pod then swings open saying, “Surgical procedure begins,” and tilting itself for easy access. Shaw injects herself with anesthetic and steps into the pod, which seals around her and returns to a horizontal position.

Why does Shaw need to speak in this stilted speech? In a panicked or medical emergency situation, proper computer syntax should be the last thing on a user’s mind. Let the patient shout the information however they need to, like “I’ve got an alien in my abdomen! I need it to be surgically removed now!” We know from the Sonic chapter that the use of natural language triggers an anthropomorphic sense in the user, which imposes some other design constraints to convey the system’s limitations, but in this case, the emergency trumps the needs of affordance subtleties.

Once inside the pod, a transparent display on the inside states that, “EMERGENCY PROC INITIATED.” Shaw makes some touch selections, which runs a diagnostic scan along the length of her body. The terrifying results display for her to see, with the alien body differentiated in magenta to contrast her own tissue, displayed in cyan.

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Shaw shouts, “Get it out!!” It says, “Initiating anesthetics” before spraying her abdomen with a bile-yellow local anesthetic. It then says, “Commence surgical procedure.” (A note for the grammar nerds here: Wouldn’t you expect a machine to maintain a single part of speech for consistency? The first, “Initiating…” is a gerund, while the second, “Commence,” is an imperative.) Then, using lasers, the MedPod cuts through tissue until it reaches the foreign body. Given that the lasers can cut organic matter, and that the xenomorph has acid for blood, you have to hand it to the precision of this device. One slip could have burned a hole right through her spine. Fortunately it has a feather-light touch. Reaching in with a speculum-like device, it removes the squid-like alien in its amniotic sac.

OK. Here I have to return to the whole “ManPod” thing. Wouldn’t a scan have shown that this was, in fact, a woman? Why wouldn’t it stop the procedure if it really couldn’t handle working on the fairer sex? Should it have paused to have her sign away insurance rights? Could it really mistake her womb for a stomach? Wouldn’t it, believing her to be a man, presume the whole womb to be a foreign body and try to perform a hysterectomy rather than a delicate caesarian? ManPod, indeed.

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After removing the alien, it waits around 10 seconds, showing it to her and letting her yank its umbilical cord, before she presses a few controls. The MedPod seals her up again with staples and opens the cover to let her sit up.

She gets off the table, rushes to the side of the MedPod, and places all five fingertips of her right hand on it, quickly twisting her hand clockwise. The interface changes to a red warning screen labeled “DECONTAMINATE.” She taps this to confirm and shouts, “Come on!” (Her vocal instruction does not feel like a formal part of the procedure and the machine does not respond differently.) To decontaminate, the pod seals up and a white mist fills the space.

OK. Since this is a MedPod, and it has something called a decontamination procedure, shouldn’t it actually test to see whether the decontamination worked? The user here has enacted emergency decontamination procedures, so it’s safe to say that this is a plague-level contagion. That’s doesn’t say to me: Spray it with a can of Raid and hope for the best. It says, “Kill it with fire.” We just saw, 10 seconds ago, that the MedPod can do a detailed, alien-detecting scan of its contents, so why on LV-223 would it not check to see if the kill-it-now-for-God’s-sake procedure had actually worked, and warn everyone within earshot that it hadn’t? Because someone needs to take additional measures to protect the ship, and take them, stat. But no, MedPod tucks the contamination under a white misty blanket, smiles, waves, and says, “OK, that’s taken care of! Thank you! Good day! Move along!”

For all of the goofiness that is this device, I’ll commend it for two things. The first is for pushing the notion forward of automated medicine. Yes, in this day and age, it’s kind of terrifying to imagine devices handling something as vital as life-saving surgery, but people in the future will likely find it terrifying that today we’d rather trust an error prone, bull-in-a-china-shop human to the task. And, after all, the characters have entrusted their lives to an android while they were in hypersleep for two years, so clearly that’s a thing they do.

Second, the gestural control to access the decontamination is well considered. It is a large gesture, requiring no great finesse on the part of the operator to find and press a sequence of keys, and one that is easy to execute quickly and in a panic. I’m absolutely not sure what percentage of procedures need the back-up safety of a kill-everything-inside mode, but presuming one is ever needed, this is a fine gesture to initiate that procedure. In fact, it could have been used in other interfaces around the ship, as we’ll see later with the escape pod interface.

I have the sense that in the original script, Shaw had to do what only a few very bad-ass people have been willing to do: perform life-saving surgery on themselves in the direst circumstances. Yes, it’s a bit of a stretch since she’s primarily an anthropologist and astronomer in the story, but give a girl a scalpel, hardcore anesthetics, and an alien embryo, and I’m sure she’ll figure out what to do. But pushing this bad-assery off to an automated device, loaded with constraints, ruins the moment and changes the scene from potentially awesome to just awful.

Given the inexplicable man-only settings, requiring a desperate patient to recall FORTRAN-esque syntax for spoken instructions, and the failure to provide any feedback about the destruction of an extinction-level pathogen, we must admit that the MedPod belongs squarely in the realm of goofy narrative technology and nowhere near the real world as a model of good interaction design.

HYP.SL

The android David tends to the ship and the hypersleping crew during the two-year journey.

The first part of the interface for checking in on the crew is a cyan-blue touch screen labeled “HYP.SL” in the upper left hand corner. The bulk of this screen is taken up with three bands of waveforms. A “pulse” of magnification flows across the moving waveforms from left to right every second or so, but its meaning is unclear. Each waveform appears to show a great deal of data, being two dozen or so similar waveforms overlaid onto a single graph. (Careful observers will note that these bear a striking resemblance to the green plasma-arc alien interface seen later in the film, and so their appearance may have been driven stylistically.)

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To the right of each waveform is a medium-sized number (in Eurostile) indicating the current state of the index. They are color-coded for easy differentiation. In contrast, the lines making up the waveform are undifferentiated, so it’s hard to tell if the graph shows multiple data points plotted to a single graph, or a single datapoint across multiple times. Whatever the case, the more complex graph would make identifying a recent trend more complicated. If it’s useful to summarize the information with a single number on the right, it would be good to show what’s happening to that single number across the length of the graph. Otherwise, you’re pushing that trendspotting off to the user’s short term memory and risking missing opportunities for preventative measures.

Another, small diagram in the lower left is a force-directed, circular edge bundling diagram, but as this and the other controls on the screen are inscrutable, we cannot evaluate their usefulness in context.

After observing the screen for a few seconds, David touches the middle of the screen, a wave of distortion spreads from his finger for a half a second, and we hear a “fuzz” sound. The purpose of the touch is unclear. Since it makes no discernable change in the interface, it could be what I’ve called one free interaction, but this seems unlikely since such cinematic attention was given to it. My only other guess is to register David’s presence there like a guard tour patrol system or watchclock that ensures he’s doing his rounds.