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Agenda for example. 1. Customer requirements 2. Create concept 3. Define additional needs 4. Complete design 5. Define lower specs and I/Fs 6. Document design. 1. Customer requirements. Problem statement Customer requirements. 1. Customer requirements. Problem statement.
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Agenda for example 1. Customer requirements 2. Create concept 3. Define additional needs 4. Complete design 5. Define lower specs and I/Fs 6. Document design
1. Customer requirements • Problem statement • Customer requirements 1. Customer requirements
Problem statement • Build a place to live for a family of four with an income of $80,000 per year • Build on speculation without specific customer in mind Applying the design process to a define a place to live is a good test for the design process because construction illustrates many aspects of design 1. Customer requirements
Customer requirements • A place to live for a family of four • Costs less then $225,000 Customer requirements are the result of translating the customer problem into an agreement about the final product 1. Customer requirements
2. Create concept • Objective • Technique • Developing concept • Outputs of developing concept 2. Create concept
Objective • Define the design sufficiently that we can estimate cost and manage project 2. Create concept
Technique • Answers three questions • What are we going to build? • Can we build it? • Roughly how much will it cost to develop? • Zig-zag back and forth between asking what and then asking how 2. Create concept
Developing concept (1 of 9) • Questions to determine what to build • Why are we building a place to live? • Profit of 20 percent • What general characteristics must the structure have? • Attractive to customers as determined by comparison to similar homes • Who is the customer? • A man, a wife, and two children Ask and answer high-level question to determine what to build 2. Create concept
Developing concept (2 of 9) • Who is the user? • The family • What type of structure? • House • Apartment • Hotel • Recreational vehicle 2. Create concept
Developing concept (3 of 9) house apartment rv hotel There are many possible solutions 2. Create concept
Developing concept (4 of 9) house Using the process for creating a solution, choose a single solution 2. Create concept
Developing concept (5 of 9) • Questions to determine if we can build the house and roughly what it will cost • How many square feet are in the house? • 2500 • How many stories? • Two • How many bedrooms? • 4 Ask and answer lower-level question to determine if we can build the house and roughly how much it will cost 2. Create concept
Developing concept (6 of 9) • How many bathrooms? • 3 • Size of garage? • 2 cars • Bedroom locations? • Downstairs -- master plus one • Upstairs -- two 2. Create concept
Developing concept (7 of 9) • Master bathroom? • Closet 1 -- 100 square feet • Closet 2 -- 30 square feet • Bathtub • Shower • Enclosed toilet • Garage-entry? • Rear entry • Utility room? • Yes 2. Create concept
Developing concept (8 of 9) • Living areas? • Living room • Family room • Game room • Lot? • Dimensions • Orientations • Utility • Ally location • Existing landscape • Drainage 2. Create concept
Developing concept (9 of 9) • Sink in utility room? • Yes • Storage under stairs? • Yes • Storage in attic? • 200 square feet, un-air-conditioned • Trim? • Crown-molding in formal areas • Appliances? • Middle-of-line, garage door opener 2. Create concept
Outputs of concept (1 of 13) Generate design spec to capture answers to questions 2. Create concept
Outputs of concept (2 of 13) 2. Create concept
Outputs of concept (3 of 13) • Blueprint • Elevations • Lot plan • Plumbing drawing • Electrical drawing • HVAC drawing Create drawings to capture design 2. Create concept
Outputs of concept (4 of 13) house lot lot prep found framing roofing plumbing HVAC electrical mason siding insul drywall trim painting cabinet flooring appl land fence clean up materials Identify lower products 2. Create concept
Outputs of concept (5 of 13) • 1. Lot • 2. Lot preparation • 3. Foundation and concrete • 4. Framing • 5. Roofing and gutters • 6. Plumbing • 7. Heating, ventilation, and air conditioning (HVAC) 2. Create concept
Outputs of concept (6 of 13) • 8. Electrical • 9. Masonry • 10. Siding • 11. Insulation and sound proofing • 12. Drywall • 13. Trim • 14. Painting and wall covering 2. Create concept
Outputs of concept (7 of 13) • 15. Cabinetry and counter tops • 16. Flooring, tile, and glazing • 17. Appliances • 18. Landscape and sprinkling • 19. Fence • 20. Clean up • 21. Materials 2. Create concept
Outputs of concept (8 of 13) Define dependencies 2. Create concept
Outputs of concept (9 of N) • Plumbing • Below-foundation plumbing • Foundation • Above-foundation plumbing • Electrical • Below-foundation electrical • Foundation • Above-foundation electrical • Errors in dependencies can be worked around 2. Create concept
Outputs of concept (10 of 13) • Schedule • Built up on basis of dependencies Define schedule 2. Create concept
Outputs of concept (11 of 13) Define internal interfaces 2. Create concept
Outputs of concept (12 of 13) • External interfaces • Sewage • Water • Gas • Electrical • Phone • Cable tv Define external interfaces 2. Create concept
Outputs of concept (13 of 13) customer requirements STUDY high-level questions and solutions low-level questions and solutions drawings Capture studies and trace leading to design 2. Create concept
3. Define additional needs • Objective • Technique • Make product work • Meet requirements • Make usable and meet needs • Provide quality and affordability 3. Define additional needs
Objective • Fill out all the details of the design such that the product can be built 3. Define additional needs
Technique • Expand the four areas in the complete-design step of the design process using models and other idea-solicitation techniques 3. Define additional needs
Make product work • Access to HVAC equipment 3. Define additional needs
Meet requirements • Customer • User • Enterprise • Developer • Other stakeholder; e.g. building codes, standards, best practices 3. Define additional needs
Make usable and meet needs • Lifestyle • Traffic patterns • Privacy 3. Define additional needs
Provide quality and affordability • Energy considerations • Reputation • Cost • Salability • COTS • Good neighborhood • Appearance • Flow of money -- bills • Environment • Convenience • Site 3. Define additional needs
4. Complete deign • Objective • Technique 4. Complete design
Objective • Complete the design to the point it can be built 4. Complete design
Technique • Implement each requirement and additional needs 4. Complete design
5. Define lower specs and I/Fs (1 of 3) • Objective • Technique • (1) Lot • (2) Lot preparation • (3) Foundation and concrete • (4) Framing • (5) Roofing and gutters • (6) Plumbing • (7) Heating, ventilation, and air conditioning (HVAC) 5. Define lower specs and interfaces
Define lower specs and I/Fs (2 of 3) • (8) Electrical • (9) Masonry • (10) Siding • (11) Insulation and sound proofing • (12) Drywall • (13) Trim • (14) Painting and wall covering 5. Define lower specs and interfaces
Define lower specs and I/Fs (1 of 3) • (15) Cabinetry and counter tops • (16) Flooring, tile, and glazing • (17) Appliances • (18) Landscape and sprinkling • (19) Fence • (20) Clean up • (21) Materials 5. Define lower specs and interfaces
Objective • Flow requirements to each of the lower products to produce a set of requirements for each 5. Define lower specs and interfaces
Technique • Flow down requirements to each lower product • Develop a set of steps for each implementing each lower product before and after subcontracting • Write a spec that defines the work to be done • Define a set of inspections to be performed on each lower product • Identify the science involved 5. Define lower specs and interfaces
(1) Lot • Requirements • Lot that satisfies location, orientation, drainage, flood, location, environment, safety, and dimensions • Special considerations • Purchased separately or provided -- not part of material 5. Define lower specs and interfaces
(2) Lot preparation • Requirements • Land clearing including stumps • Excavation and backfill including drainage • Marking foundation • Trash receptacle • Special considerations • Excavation paid by hour 5. Define lower specs and interfaces
(3) Foundation and concrete • Requirements • Footings, foundation, sidewalks, driveway • Water-proofing and drainage • Temporary sidewalks • Pest control • Special considerations • Full-service foundation company vs individual subcontractors • Type of concrete and reinforcement • Weather and climate • Interface with plumber and pest control 5. Define lower specs and interfaces
(4) Framing • Requirements • Framing • Sheathing • Windows and doors • Garage door • Special considerations • Paid by square foot of covered area plus extras • May use pre-fabricated components 5. Define lower specs and interfaces
(5) Roofing and gutters • Requirements • Roofing • Gutters including flashing • Special considerations • Roofing cost based on squares; gutter based on linear foot; usually separate • Gutter goes on after cornice painted and wall finished • Type of roof -- wood, asphalt, fiberglass, aluminum, tile, concrete • Type of gutter -- aluminum, vinyl 5. Define lower specs and interfaces
(6) Plumbing • Requirements • Water • Sewer • Gas • Vent system • Special considerations • Septic tanks and water wells • Dependent upon local building codes • Material -- cast iron, copper, PVC, CPCV, polybutylene 5. Define lower specs and interfaces