A diagram of Doug Engelbarts CONccurrent Development, Integration, & Application of Knowledge process. (CODIAK). It shows three categories of information arranged in three vertical columns: Dialog Records: memos, status reports, change requests, commentary, design reviews, etc. External Intelligence: Articles, books, reports, papers, competition, supplier and customer info, new technologies, trip reports, etc. Knowledge Products: Proposals, plans, budgets, legal contracts, design specs, Mfg plans, test plans and results, etc. Arrows lead from Dialog Records to Knowledge Products and in the opposite direction, indicating how dialog leveraging external intelligence both supports creation of knowledge products and is a primary subject of a continuing stream of dialog.