Generate Alternatives Apply heuristics to generate alternatives. Process for Rearchitecting an Existing Product to Improve Environmental Performance Environmental Stressors Baseline Architecture SLCA Criteria AND Architecting Heuristics AND Architectural Response Figure 2. The process of architecting for environmental performance has been applied to the HP DeskJet 540 printer. While this product was introduced in 1994, several models currently on the market exhibit similar architectures. The 540 prints black images of 600x300 dots per inch resolution at a rate of about 3 pages per minute in normal print quality mode.
Print drivers support single sided printing on four paper and two envelop sizes.
Ink is replenished by replacing a cartridge which also contains the ink jets. A reverse engineering study produced a baseline architecture represented by function models, physical models, technology models, interface diagrams, and module definitions. Potential opportunities to improve environmental performance were then identified by examining the architecture, design details and performance in the context of the SLCA evaluation criteria, following the process illustrated in Figures 1 and 2 above. The results are summarized in Table 3 . Solid Residues Don t pack consumables with nonconsumables.