Exercise 2 — Language, Meaning & Definition
Covers: Lesson 02
Difficulty: Foundation
Problem 1: Cognitive vs. Emotive
Rewrite each statement to maximize cognitive meaning and minimize emotive meaning.
A. “The firmware is an absolute trainwreck.”
B. “Our amazing new algorithm crushes the competition.”
C. “Management’s reckless decision to ship early will destroy product quality.”
D. “The lazy QA team didn’t bother testing edge cases.”
Problem 2: Ambiguity
Identify the type of ambiguity (semantic, syntactic, or cross-reference) and provide two different interpretations.
A. “The robot hit the shelf at high speed.”
B. “We need to replace defective boards with new screws.”
C. “The estimator gets data from the sensorbar and the IMU. When it fails, the robot stops.”
D. “The engineer tested the motor running the diagnostic script.”
Problem 3: Vagueness
Each statement is vague. Rewrite it with a precise, measurable version.
A. “The robot is too slow.”
B. “The battery drains quickly.”
C. “The firmware update has been tested extensively.”
D. “There’s a significant delay in the control loop.”
E. “The robot crashes frequently.”
Problem 4: Verbal vs. Genuine Dispute
Determine whether each disagreement is verbal (about definitions) or genuine (about facts).
A. Engineer A: “The robot delocalized three times today.” Engineer B: “No, those were just covariance spikes — the position error never exceeded 50cm.”
B. Engineer A: “The firmware fix works.” Engineer B: “No, the same failure occurred yesterday on Robot-53.”
C. Engineer A: “This is a critical bug.” Engineer B: “It’s not critical — it only affects 2% of robots.”
Problem 5: Types of Definitions
Classify each definition as stipulative, lexical, précising, theoretical, or persuasive.
A. “For this investigation, ‘STALL’ means the sensorbar sequence counter did not increment for 5 or more consecutive cycles.”
B. “A motor is a device that converts electrical energy into mechanical motion.”
C. “A ‘high priority’ bug is one that affects more than 10% of the fleet or causes a safety stop.”
D. “‘Real testing’ means testing on actual hardware under production conditions, not in simulation.”
E. “In information theory, ‘entropy’ is a measure of the average amount of information produced by a stochastic source of data.”
Problem 6: Genus and Difference
Write genus-and-difference definitions for:
A. Sensorbar
B. Firmware
C. Deadlock (in software)
D. Root cause analysis
Problem 7: Definition Evaluation
Each definition violates one or more rules of good definitions. Identify the violation.
A. “A bug is a problem with software.” (too broad? too narrow? circular? negative? figurative? emotive?)
B. “A Kalman filter is a filter that uses the Kalman algorithm.”
C. “A robot is not a toaster.”
D. “Programming is the art of telling a computer your dreams.”
E. “A sensor is a device used in robotics to measure physical quantities.”
Solutions
Click to reveal solutions
**Problem 1:**
**A.** "Firmware v2.3 has 12 unresolved bugs, including 3 that cause system crashes under normal operating conditions."
**B.** "Our new algorithm achieves 40ms average path planning time, compared to 120ms for the previous algorithm."
**C.** "Shipping 2 weeks ahead of the original schedule means skipping integration testing, which historically catches 30% of production bugs."
**D.** "The QA test plan did not include edge cases for sensor timeout and concurrent DMA access."
**Problem 2:**
**A.** Semantic ambiguity: "hit" could mean physically collided with OR reached/arrived at. Also "high speed" is relative.
**B.** Syntactic ambiguity: Replace defective boards using new screws? OR replace defective boards with ones that have new screws? OR replace defective boards and also replace screws?
**C.** Cross-reference ambiguity: "it" could refer to the estimator, the sensorbar, or the IMU.
**D.** Syntactic ambiguity: The engineer tested the motor while running the diagnostic script? OR the engineer tested the motor that was running the diagnostic script?
**Problem 3:**
**A.** "The robot's average traverse speed is 0.15 m/s, which is below the required 0.3 m/s threshold."
**B.** "Battery depletes from 100% to 20% in 4 hours of continuous operation, versus the 8-hour design target."
**C.** "The firmware update was tested on 25 robots across 3 hardware revisions over 72 hours of continuous operation, with 0 failures observed."
**D.** "The control loop latency is 8ms, exceeding the 5ms maximum specified in the requirements."
**E.** "The robot has experienced 7 unplanned stops in the past 24 hours of operation."
**Problem 4:**
**A.** Verbal dispute — they disagree on the definition of "delocalized." If they agree on a threshold (e.g., position error > 50cm for > 2 seconds), the factual disagreement may disappear.
**B.** Genuine dispute — they disagree about the factual claim that the fix prevents the failure. This is resolved by evidence.
**C.** Verbal dispute — they disagree on the definition of "critical." Once they agree on criteria (e.g., affects >10% of fleet, or causes safety event), the classification follows.
**Problem 5:**
**A.** Stipulative — assigns a specific technical meaning for a particular investigation.
**B.** Lexical — reports the standard dictionary meaning.
**C.** Précising — takes the vague term "high priority" and gives it precise criteria.
**D.** Persuasive — the word "real" smuggles in the value judgment that simulation-based testing isn't legitimate.
**E.** Theoretical — defines entropy within the framework of information theory.
**Problem 6:**
**A.** A sensorbar (genus: sensor module) is a linear array of optical encoders that measures incremental wheel displacement by detecting alternating stripes on a code strip, providing position feedback to the navigation system.
**B.** Firmware (genus: software) is low-level code stored in non-volatile memory that directly controls a device's hardware functions, typically running on a microcontroller without a general-purpose operating system.
**C.** A deadlock (genus: concurrency error) is a condition where two or more processes each hold a resource while waiting for a resource held by another, preventing any of them from proceeding.
**D.** Root cause analysis (genus: investigation methodology) is a systematic process for identifying the fundamental underlying cause of an incident or defect, as opposed to its symptoms or proximate triggers.
**Problem 7:**
**A.** Too broad — a performance bottleneck, a design flaw, and a missing feature could all be called "a problem with software," but not all are bugs.
**B.** Circular — defines "Kalman filter" using "Kalman algorithm." You need to know what the algorithm is to understand the filter.
**C.** Negative when positive is possible — tells you what a robot ISN'T, not what it IS.
**D.** Figurative/metaphorical — "art" and "dreams" are poetic, not informative.
**E.** Too narrow — sensors are used in many fields (medicine, automotive, manufacturing), not just robotics.