Lean Construction Ireland Annual Book of Cases 2021 101 advancing work based on central schedule. Releasing materials, information,or directives possibly according to a plan but irrespective of whether or not the downstreamprocess is ready to process them. Quality Quality denotes an excellence in goods and services, especially to the degree they conform to requirements and satisfy customers. QualityAssignment Assignment that meets quality criteria for release to the customer process.The quality criteria are: (1) definition; (2) soundness; (3) sequence; (4) size; and (5) learning. Reason forVariance Factors that prevented an assignment from being completed as promised, used by the team to promote learning concerning the failure of the planning system to produce predictable workflow. By assigning a category of variance to each uncompleted task, a team is able to identify those areas of recurring failure that require additional reflection and analysis. Reliable Promise A promise made by a performer only after self-assuring that the promisor : (1) is competent or has access to the competence (both skill and wherewithal); (2) has estimated the amount of time the task will take; (3) has blocked all time needed to perform; (4) is freely committing and is not privately doubting ability to achieve the outcome; and (5) is prepared to accept any upset that may result from failure to deliver as promised. Request The action taken by a customer to ask a performer to take some action to produce a mutually understood result (CoS) by a definite time in the future. Right FirstTime (RFT) This concept involves ensuring that all activities/processes are carried out in the right manner the first time and every time. A quality management concept that defect prevention is more advantageous and cost effective than defect detection and associated rework. Root CauseAnalysis Integral to Lean tools and techniques, and the essence of problem solving, this is a systematic method of analysing possible causes to determine the root cause of a problem. SCAMPER The SCAMPER technique is based very simply on the idea that what is new is actually a modification of existing old things around us. It is a creative thinking and problem solving technique developed to address targeted questions that help solve problems or ignite creativity during brainstorming meetings.The name SCAMPER is acronym for seven techniques: (S) substitute, (C) combine, (A) adapt, (M) modify, (P) put to another use, (E) eliminate, and (R) reverse. Screening Determining the status of tasks in the look-ahead window relative to their constraints, and choosing to advance or retard tasks based on their constraint status and the probability of removing constraints. Scrum Linked toAgile, and initially utilised in software development, Scrum is a framework for developing, delivering, and sustaining complex products, within which people can address complex adaptive problems while productively and creatively delivering products of the highest possible value. Scrummeetings encompass the essence of Lean Huddle Meetings and Leader StandardWork. Sequenced A sequenced assignment should release work to another performer, and in no case should it hinder another assignment or cause other crews to do additional work. It refers to quality criterion for selecting assignments amongst those that are sound in priority order, as well as sound in constructability order. Set-Based Concurrent Engineering (SBCE) This emanated from theToyota Motor Corporation’s approach to product development. SBCE begins by broadly considering sets of possible solutions and gradually narrowing the set of possibilities to converge on a final solution.A wide net from the start, and gradual elimination of weaker solutions, makes finding the best or better solutions more likely.As a result, a company/design team may take more time early on to define the solutions, but can then move more quickly toward convergence and, ultimately, production than its point-based counterparts. Set-Based Design (SBD) A design method whereby sets of alternative solutions to parts of the problem are kept open until their last responsible moment (LRM) in order to find by means of set intersection the best combination that solves the problem as a whole. Shielding Preventing the release of work to production units because it does not meet quality criteria – the work is not a quality assignment. It is akin to stopping the assembly line rather than advancing a defective product.The purpose of shielding is to reduce uncertainty and variation, thereby providing production units with greater opportunity to be reliable. Should-Can-Will-Did To be effective, production management systems must tell us what we should do and what we can do, so that we can decide what we will do, then compare with what we did to improve our planning. SIPOC This refers to Suppliers, Inputs, Process, Outputs, Customers. It is a tool used in process mapping to assist in documenting a process from beginning to end. Sized Quality criterion for assignments whereby the amount of work included in an assignment is made to match the capacity of the production unit that will do the work.The performer should have a very reasonable expectation that the assignment can be completed by the number of people available to do the job. SMED Stands for Single Minutes Exchange of Dies. It is a Lean production Glossary
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