Functional engineering, functional objects and the functional documents

Functional design, objects, documents/drawings, design specs, coding and break down structuresTable of contents

0 Introduction

1 Definitions. Functional engineering and OntoCAPE

2.1 Manufacturers Embrace Functional Design Paradigm Shift

2.2 What is functional design?

3 Functional engineering for the process industry, functional objects and the documents.

4 Functional engineering for all engineering disciplines in more detail, data exchange and storage

4.1 The Process Flow Diagram - PFD, a schematic illustration of the system

4.2 P&ID General Information

4.3.Functional Equipment Data Sheet (Process and mechanical to complete)

4.4.Functional documents for Process Control

5 Functional Design Specification

6 Coding and break down structures

7. ISO/IEC 11179 Information technology Metadata registries (MDR)

8. ISO/TC 10, from DIN-9776 to the harmonized ISO/IEC 81346

9.. The Cohesion of Plant breakdown structure, Identification, Coding, Plant numbering, Structure, Master Data Management, OntoCAPE, Data exchange, Data storage, STEP AP221, ISO 15926 and Gellish in the life cycles of a plant. (it deals with information aspects of the translation from functional engineering to the hardware (materialized) engineering)

0 Introduction

It is an initial drafted part, as part of many papers (book), that describe the different aspects of the lifecycle of a process plant, in order to harmonize our mutual activities

In this conceptual positon paper on "Functional engineering, objects and documents the second draft". some of the aspects on the functional (conceptual and wider including Feed) engineering, is discussed

1 Some Definitions. In the ISO TC 184/SC4 WG 2 T25 communities it is felt necessary to discuss the subject of functional design also referred to as functional engineering. Functional design in the world has different meanings, see below. With the OntoCAPE (see page3) developers we like to exchange the developmentsFunctional design (computer science) A level of the design process in which subtasks are specified and the relationships among them defined, so that the total collection of subsystems performs the entire task of the system.

Functional design (systems engineering) The aspect of system design concerned with the system's objectives and functions, rather than its specific components.Difference between processdesign and Functional design. From the document Functional and Physical Objects we use the big picture approach. 1 For critical equipment a spare can be purchased at the same time, or later, against the same specification. This spare unit can be put in the warehouse or can be installed as an "installed spare", with or without automatic switch-over (belowthe resulting numbering with A and B will be addressed). If, for some reason, the supplier cannot deliver, e.g. because of bankruptcy, another Materialized Physical Object is purchased from another supplier against the same specification of the class P101. 2 In case an installed spare pump is required, we usually number them with A and B, here: P101A and P101B. That means that there are two classes that happen to have the same class definition, except for their service description. That spare pump did not come into existence for process technical reasons, but for business reasons (we want a maximum uptime of the plant). 3 3 Another case of A and B we may find in certain control valve configurations. For the process engineer there may be, at a particular point in the plant design, just one control valve, say FV5. Based on the heat and material balance he then may define a minimum a nd maximum flow that are far apart from each other, i.e. a large range ability is required, larger than any single control valve can possibly deliver because of leakage. The control systems engineer (I used to be one for many years) then specifies two control valves, one with linear and one with equal percentage characteristics, and with split-range positioners.

Design refers to the planning that is the foundation of making things. There are different design philosophies, approaches, and methods. Design strikes a balance between a number of different components, and depending on the situation, it can give more weight to one or another. For example, one might focus on materials and ask what could be made with a certain collection of items, or one could focus on aesthetics and try to imagine the most beautiful object to place in a certain setting.

Functional design can refer to a focus on function rather than aesthetics, a concern with objectives rather than components, or it can refer to the use of a complete requirements document to guide development and testing or to a computer modeling technique. In addition functional design is an integral part of functional design specification.

Functional design This term is introduced and amplified in the world of ICT, the computer programming projects, a business that that after it grew needed new beacons to overcome their initial problems, the underlying theory and implementation was however used for many years also in the Process and Power industry, sometimes a bit sloppy.

Functional design. In engineering design In the lifecycle of engineering projects, there are usually distinguished subsequently: Requirements and Functional specification documents. The Requirements usually specifies the most important attributes of the requested system. In the Design specification documents, physical or software processes and systems are frequently the requested functions.Functional design In products For advertising and marketing of technical products, the number of functions they can perform is often counted and used for promotion. For example a calculator capable of the basic mathematical operations of addition, subtraction, multiplication, and division, would be called a "four-function" model; when other operations are added, for example for scientific, financial, or statistical calculations, advertisers speak of "57 scientific functions", etc. A wristwatch with stopwatch and timer facilities would similarly claim a specified number of functions. In engineering a process is a set of interrelated tasks that, together, transform inputs into outputs. [1] These tasks may be carried out by people, nature, or machines using resources; so an engineering process must be considered in the context of the agents carrying out the tasks, and the resource attributes involved.[2] Systems Engineering normative documents and those related to Maturity Models are typically based on processes. For example, System Engineering processes of the EIA-632 and processes involved in the Capability Maturity Model Integration (CMMI) institutionalization and improvement approach. Constraints imposed on the tasks and resources required to implement them are essential for executing the tasks mentioned

Most often, functional design is used to mean that the products functionality is taken into account in important ways as it is imagined and built. For a product to end up being functional, both the end user and the client need to be considered all the way through the design process. It may take some work to describe the target audience accurately. The process of functional design begins with the goal of the product: a clear statement of what it is supposed to do. This does not mean that what the client wants it to do is the only thing that the user will, in fact do with it. It does need to do well what it was made to do.Usually the end user is not represented directly in the functional design process, so his or her responses have to be imagined.

Designers must also imagine his or her ability to learn how to use the product, to integrate it with other products he or she already has, or to adapt it to his or her unique circumstances, if it is the kind of product that is meant to be personalized. Similarity of design to existing products and well-done documentation can contribute to the end users experience; that is, thoughts about things that are not intrinsic to the product itself can help the product to be more functional for the user than it would be otherwise. With any product that has to be plugged in, a feedback system needs to be established. People are used to the light that tells them that the vacuum is plugged in and the funny sound in their word processing software that tells them that theyve tried to do something that has no reasonable outcome. Part of functional design is letting the user know that the product is or isnt functioning. Furthermore, if something isnt working or the user attempted something that failed, a well-designed product will assist the user in getting things back on track.

WHAT IS FUNCTIONAL ENGINEERING?

Functional engineering is the process of building a mathematically rigorous representation of the expected functional behavior of the proposed software. The problem of defining, measuring, and testing detailed functionality has previously been tackled by hardware engineers, and chip testing engineers in particular. These engineers needed to be able to quickly confirm the correct functional behavior of every computer chip coming out of a fabrication plant. The algorithms used to design tests for chip logic should also apply to the functional logic of software.

Functional engineering in the life cycle.

In the literature functional engineering is done dur