1. LSU 01/17/2006Spring 20061 LaACES Schedule For the semester and the next few weeks

2. LSU 01/17/2006Spring 20062 What you will be doing Effort now shifts to designing, building and flying your payload. You will need to apply everything you learned last semester 70% of student built payloads suffer a partial or complete failure. How well you fare will depend almost exclusively upon how well you manage your project!

3. LSU 01/17/2006Spring 20063 Spring 2006 Timeline

4. LSU 01/17/2006Spring 20064 The Design Phase Little to no hardware testing or prototyping Define science goals and objectives System level design (subject of Lecture 3) –System requirements derived from goals and objectives –Identify major subsystems and interfaces Concept hardware and software design –Derived from system requirements and constraints –Identify parts, costs & availability Establish tasks, schedule, resource needs and plans for remaining phases of life-cycle Develop preliminary risk assessment & management plan Phase terminates with Preliminary Design Review (PDR) “Paper” study of all issues to establish major concepts and plans

5. LSU 01/17/2006Spring 20065 Preliminary Design Review (PDR) The PDR should cover results from your design phase including: –Goals & objectives –Preliminary System design –Concept hardware & software design –Tasks, schedule, resource needs, long-lead items –Preliminary risk assessment & management plan Should show that you have “thought the problem through” Include written document and oral presentation –Format of document was discussed in PM - Lecture 8 –Document template on the LaACES website LSU faculty will attend & participate in the PDR

6. LSU 01/17/2006Spring 20066 Specific PDR Plan Next four weeks you will work on your PDR document –Specific sections will be due each week –Each section will be reviewed and returned for your updates Sections through Mission Objectives due 1/24 Sections through Payload Design due 1/31 Sections through Payload Development, Construction and Mission Operations due 2/7 Sections through Project Management, Master Schedule and Master Budget due 2/14 Final document due 2/20, PDR on 2/21

7. LSU 01/17/2006Spring 20067 Effort for this week Establishing a clear understanding of your goals, objectives and requirements is necessary for a correct payload design –Determine what you must do –Determine what can be removed –Set constraints on how to do it ALL of your planning and payload design flows from this critical first step A considerable amount of time, resources and effort in a project can be wasted if a set of requirements is not initially, clearly defined

8. LSU 01/17/2006Spring 20068 Requirement flow Science Background Mission Goal Requirements Science ObjectivesTechnical Objectives Payload Design

9. LSU 01/17/2006Spring 20069 Mission Goal A mission goal is a simple, straight forward explanation of … –What you intend to do –Why you are doing it –Where you are doing it For example, the mission goal for the Mars Exploration Rover (MER) is very simple “… to search for and characterize a wide range of rocks and soils that hold clues to past water activity on Mars.”

10. LSU 01/17/2006Spring 200610 Objectives Objectives include the specific items that need to be achieved by the mission / payload. Science Objectives include specific measurements derived from the “science background” that are needed to satisfy the mission goal –For example, what does “characterize … rocks and soil” actually mean? Technical Objectives include specific physical characteristics needed to satisfy the mission goal –For example, what does “search for … a wide range of” actually mean?

11. LSU 01/17/2006Spring 200611 Requirements Derived directly from the science background, mission goal, science objectives and technical objectives Constrains and specifies how the payload is constructed and operated –Requirements should point back to a specific objective For example, one MER requirement may have been how many rocks they would have to sample –This would, in turn, set a requirement on rover range –Required range would then set a requirement on durability of the rover wheel system

12. LSU 01/17/2006Spring 200612 So, for tonight … Update, if necessary, the LaACES participants information list. Clean up and put away your hardware. You will not need any of this for several weeks. Determine who is working on what payload this semester –You may want to focus on only two payloads Download the PDR template Establish your tasks for the coming week Setup your team meeting times