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CLR 252 Developing Requirements

This lesson outlines essential components and guidelines for drafting high-quality requirements, focusing on categorizing Key Performance Parameters (KPPs) using Measures of Effectiveness (MOEs). It delves into how MOEs correlate with mission objectives and desired outcomes. Understanding the relationship between Measures of Performance (MOPs) and Measures of Suitability (MOS) aids in evaluating a system's operational capabilities, reliability, and maintenance needs. This lesson also includes a practical example using Joint Strike Fighter metrics to illustrate these concepts.

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CLR 252 Developing Requirements

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  1. CLR 252Developing Requirements Greg Prothero

  2. Lesson #3: How to Write a Good Requirement Components and Guidelines for writing

  3. Measures of Effectiveness and KPPs Now that we have looked at components and guidelines for writing quality requirements, we will look at categorizing KPPs by measures of effectiveness.

  4. Measures of Effectiveness and KPPs Measure of Effectiveness (MOE) Measure designed to correspond to accomplishment of mission objectives and achievement of desired results. (CJCSI 3170.01E) MOEs may be further decomposed into Measures of Performance and Measures of Suitability. What do we want the system to be able to do?

  5. Measures of Performance and KPPs Measure of Performance (MOP) Measure of a system’s performance expressed as speed, payload, range, time on station, frequency, or other distinctly quantifiable performance features. Several MOPs and/or Measures of Suitability may be related to the achievement of a particular Measure of Effectiveness (MOE). What operational capability does this system provide? - Mission related KPPs

  6. Measures of Suitability and KPPs Measure of Suitability (MOS) Measure of an item’s ability to be supported in its intended operational environment. MOSs typically relate to readiness or operational availability, and hence reliability, maintainability, and the item’s support structure. Several MOSs or Measures of Performance (MOPs) may be related to the achievement of a particular Measure of Effectiveness (MOE). How reliable is the system? - Sustainment related KPPs

  7. Measures of Effectiveness and KPPs - JSF Example Measures of Effectiveness (MOE) Measure of Performance KPPs - Combat Radius - 3 Profiles by Service: USMC 450nm; USAF 590nm; USN 600nm - Radio Frequency Signature - (Stealth) - Interoperability – Meet 100% of critical Information exchange requirements: Secure Voice and Data

  8. Measures of Effectiveness and KPPs - JSF Example

  9. Measures of Effectiveness and KPPs - JSF Example Measures of Effectiveness (MOE) Measure of Suitability KPPs - Mission reliability directly impacts O&S costs for parts replacement and the associated expenditure of maintenance man-hours.   - Logistics footprint influences both program acquisition costs and O&S costs; the smaller the footprint is, the smaller the acquisition cost will be and the less expensive it will be to transport and maintain. - Sortie generation rate depends on maintenance man-hours per operating hour and heavily influences design for maintainability

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