Study on Integrated Plan Model of Equipment Quality Management

Chong Meng, Huawen Song Department of Equipment Command

Institute of Equipment Command & Technology Beijing, China

chong7767@126.com

Abstract—Equipment quality management planning, controlling and improving are the main contents of equipment quality management job. In order to enhance equipment quality management efficiency, a sort of equipment quality management integrated plan model is presented in this paper. Firstly, the contents of equipment quality management integrated plan are analyzed, concerning of total process integration, total hierarchy integration, and total member integration. Secondly, according as equipment quality management integrated plan principle, equipment quality management integrated plan conceptual model is designed. Lastly, Implement measures of equipment quality management integrated plan are brought forward. The implement flow is as follows, analyzing equipment quality management integrated plan environment on the stratagem and battle level, constructing equipment quality management integrated plan goal system based on QFD (quality function deployment) on the tactics level, and designing equipment quality management integrated plan scheme based on Knowledge-Petri net. This novel equipment quality management plan mode is a new seeking of solving equipment quality management problems effectively.

Keywords-equipment quality management; integrated plan; QFD; goal program; knowledge-petri net

I. INTRODUCTION Equipment quality management plan is a systemic arrange

of taking scientific, logistic, effective and operable action for realizing equipment quality management goals, in order to instruct and control the rational exertion of equipment quality management resources, which is a guidance document of equipment quality management system running. At present, academia and war industry corporation at home and overseas have develop a lot of researches on equipment quality management theory and practice. Firstly, many advanced management ideas are forming step by step. For example, total quality management [1-3], process management [4-5], lean management [6], and so on. Secondly, several kinds of technologies and methods are exerted to solving the organization structure problem, running mode problem, and law rule problem about equipment quality management. For example, QFD [7], 6б [8], TRA (Technology Readiness Assessment) [9], and so on. Thirdly, the authentication and evaluation institution of equipment quality management system are carried out. But we find that, study on equipment quality management planning is singularly. If we enlarge the range of literature search, study on quality planning is still

singularly. Literature [10] studied systemically the theory and method of quality planning, and established the process model of quality planning, which offer use for reference for our paper. But aiming at equipment quality management planning, the following three points is very important. Firstly, actuality of equipment quality management system must be fully considered at present. Secondly, differences and relations between quality planning and quality management planning must be recognized. Thirdly, solving equipment quality management problems must be regarded as the study goal. Hence, this paper establishes equipment quality management integrated plan model based on the total system and life-cycle equipment quality management idea, and presents the new mode of equipment quality management planning.

II. EQUIPMENT QUALITY MANAGEMENT INTEGRATED PLAN CONTENT

Equipment quality management integrated plan is a planning management job of systemic, synthetical, compositive and comprehensive characteristic. It deals with equipment quality management total process integration (demonstrate phase, manufacture and production phase, trial and appraisal phase, use and support phase, retire and scrap phase), total hierarchy integration (stratagem level, battle level and tactics level), total member integration (military unit, supplier and consultation institution).

A. Total Process Integrated Plan Equipment quality management total process integrated

plan contents contain as follow. Firstly, phase current plan contents (taking demonstrate phase as an example). (1) Quality management range list. For example, current and appropriative quality characteristic design request. (2) Quality management goal list. For example, demonstrate personnel specialization, demonstrate measure scientific, and demonstrate judge standardization. (3) Time and logic arrange. (4) Power arrange. (5) Implement scheme. Secondly, interface management contents between phases on the course of total process integrated plan. Thirdly, inner joints identify method in phases on total life cycle.

B. Total Hierarchy Integrated Plan Equipment quality management total hierarchy integrated

plan contents contain as follow. Firstly, equipment quality management plan contents on stratagem (battle and tactics)

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level. (1) Analyze the inner and external (inner and unit inner) environment of equipment quality management system. (2) Establish equipment quality management stratagem (battle and tactics) goal system. (3) Constitute equipment quality management stratagem (battle and tactics) programming. Secondly, communicate effectively between each management levels. (1) Communication plan. (2) Information spread. (3) Execute report. (4) Feedback summarization.

C. Total Member Integrated Plan Equipment quality management total member integrated

plan means that, equipment quality management participants develop integrated plan job aim at their respective request and expectation, according as benefit maximum principle of equipment quality management. The contents contain that, (1) Total member participation. (2) Collaboration and restriction between members.

III. EQUIPMENT QUALITY MANAGEMENT INTEGRATED PLAN MODEL

Process dimension, hierarchy dimension and personnel dimension compose three-dimensional structure of equipment quality management integrated plan system. How to make these plan elements integrated organically, this paper establishes equipment quality management integrated plan model.

A. Equipment Quality Management Integrated Plan Principle

1) Flexibility principle Plan arranges should conform to flexibility principle. On

the one hand, plan contents should be adjustable at the key

node, and multifold plan adjustable schemes should be provided. On the other hand, it is very important for plan to rolling put in practice. Plan contents need to be detailed and operable in the initial several nodes of certain phase of equipment quality management, and it is sketchy and foreseeable in the last several nodes, so as to emend equipment quality management plan according to environmental change.

2) Core member oriented integrated plan principle Equipment quality management integrated plan design

equipment quality management resources and factors from systemic visual angle. But that don’t mean to change drastically the traditional plan mode. Integrated plan mode should regard certain core phase or core participant of certain phase as center to integrate plan network. For example, manufacture and production phase is the core phase of equipment quality management, which is the tache of plan integration.

3) Military member oriented principle Equipment quality construction problem relates to nation

safety and army battle effectiveness, which is different essentially with general commodity quality problem. The core competitor may be not dominant. In other words, implement of equipment quality management integrated plan must show military member oriented effect.

B. Equipment Quality Management Integrated Plan Conceptual Model On the basic of analyzing synthetically equipment quality

management integrated plan contents, according to equipment quality management integrated plan principle, this paper designs equipment quality management integrated plan conceptual model, which is shown in Fig.1.

AB

CD

E

Whole environment

analysis

Confirm overall goal

and phase goal

Design scheme

A

A-B interface

B

Phase Benvironment

analysis

Confirm phase B goal and adjust

overall goal

Design phase B scheme

B-C interface

……

D-E interface

Phase Eenvironment

analysis

E

Confirm phase E goal

Design phase E scheme

Process Dimension

Personnel Dimension

Hiberarchy Dimension

demonstrate phase

manufacture and production phase

trial and appraisal phase

use and support phasemilitary unit

supplier

consultation institution

stratagem level

battle level

tactics level hierarchical plan

Hierarchical Plan

Retire and scrap phase

Figure 1. Equipment quality management integrated plan conceptual model

In Fig. 1, A denotes the starting point of making equipment quality management integrated plan and demonstrate phase equipment quality management integrated plan. At this point, equipment quality management integrated plan is constituted roughly from stratagem visual angle, and demonstrate phase equipment quality management integrated plan need to be constituted in detail. B denotes the starting point of making

manufacture and production phase equipment quality management integrated plan. At this point, equipment quality management integrated plan is emended, and manufacture and production phase equipment quality management integrated plan need to be constituted in detail. C denotes the starting point of making trial and appraisal phase equipment quality management integrated plan. D denotes the starting point of

making use and support phase equipment quality management integrated plan. E denotes the starting point of making retire and scrap phase equipment quality management integrated plan. The function of point C, D, E is similar with that of point B.

C. Equipment Quality Management Integrated Plan Implement Measure Fig. 1 shows equipment quality management integrated

plan conceptual model, and then, how to constitute equipment quality management integrated plan, this paper presents detailed implement measures.

1) Equipment quality management integrated plan environment analysis

Environment analysis is the important foundation of equipment quality management integrated plan. At point A, we mainly analyze stratagem environment of equipment quality management. At point B, C, D and E, we mainly analyze battle environment of equipment quality management, and adjust stratagem plan direction timely. Detailed analysis contents are shown in Table I.

TABLE I. EQUIPMENT QUALITY MANAGEMENT INTEGRATED PLAN ENVIRONMENT ANALYSIS

Node Environment Analysis Element Environment

Analysis Measure Environment Analysis

Characteristic Level 1 Index Level 2 Index

A

Stratagem environment

Organization structure

Mainly by qualitative

analysis

Decision-making level overall

long-term authoritative

steady synthetical

Running mechanism

Guideline policy

Manpower resource

Technology resource

Information system

Battle environment

Demonstrate quality management system

Qualitative analysis combined with quantitative

analysis

Executive level partial

medium/short-term instructional

flexible operable

Demonstrate quality guideline, goal and procedure Demonstrate personnel Demonstrate measure

Demonstrate mean

B

Manufacture and production total request Manufacture and production criterion

Military delegate quality management system Supplier quality management system

Consultation institution participate in manufacture and production instance

C

Trial and appraisal plan Trial and appraisal quality request

Trial and appraisal quality management system Consultation institution participate in Trial

and appraisal instance

D

Use and support plan Use and support quality management system

Supplier and consultation institution participate in maintain and support instance

E Retire and scrap plan Retire and scrap assess institution

2) Equipment quality management goal analysis based on QFD

Equipment quality management planning is virtually such a course as designing equipment quality management schemes and measures in order to carry out equipment quality management goal. Hence, equipment quality management goal is the vital content of equipment quality management planning. This paper analyzes equipment quality management goal based on QFD.

QFD is one of these techniques that make the function and operation of forming quality deployed by a set of purposes and means step by step [11], its core part is house of quality (HoQ).

By establishing HoQ, designer can availably connect requirement of customer with technology characteristic, and design purposefully technology characteristic of product to meet requirement of customer.

Equipment quality management goal analysis principium based on QFD is that, quality requirements of army are translated into equipment quality management goals on different phase of life cycle by HoQ. Namely, equipment using requirements are mapped as demonstrate requests, design requests, develop requests and trial requests gradually, by conversion matrix, equipment quality management goal chain is established [12], shown as Fig.2.

conflict analysis

D1

conversion matrix

S1

R1

conflict analysis

D2

conversion matrix

S2

R2

conflict analysis

D3

conversion matrix

S3

R3

conflict analysis

D4

conversion matrix

S4

R4

conflict analysis

D5

conversion matrix

S5

R5

conversion matrix

G4 G3 G2 G1G5

R1: equipment using quality requirements

R2: equipment demonstrate quality requirements

R3: equipment design quality requirements

R4: equipment accessory characteristic quality requirements

R5: equipment develop quality requirements

D1: equipment demonstrate quality demands

D2: equipment design quality demands

D3: equipment accessory characteristic quality demands

D4: equipment develop quality demands

D5: equipment trial and appraisal quality demands

G1: equipment using quality management goal

G2: equipment demonstrate quality management goal

G3: equipment design quality management goal

G4: equipment develop quality management goal

G5: equipment trial and appraisal quality management goal

S1: equipment demonstrate resource restrict

S2: equipment design resource restrict

S3: equipment technics resource restrict

S4: equipment develop resource restrict

S5: equipment trial and appraisal resource restrict

Figure 2. Equipment quality management goal chain

Taking demonstrate phase as a example, we introduce that how to confirm equipment quality management goal on this phase.

Step1. List equipment using quality requirements index set {r1,r2,…,rm}. List demonstrate quality demands index set of affecting equipment using requirements {l1, l2,…,ln}. List resource restrictions of affecting demonstrate quality demands (S), such as economy feasibility (E), technology feasibility (T), and so on.

Step2. Suppose these indexes are independent in the same index set, calculate weight of index by AHP, timely, {w1, w2,…,wm}(using quality requirements indexes), {w’1, w’2,…,w’n}(demonstrate quality demands indexes) and {wA,wC,wT}(weight relation between equipment demonstrate quality goals and its resource restrictions).

Step3. Establish and solve the goal programming model in order to seek to minimum of restriction conditions windage d [13].

Min {wA(d1+/-)+ wC(d2

+/-)+wT(d3+/-)}

S(x1,x2,…,xn,d1,d2,d3)=0 Step4. Because these relations between equipment

demonstrate quality requirements and equipment demonstrate quality management goals are direct. Therefore, we don’t consider resource restriction problems, and confirm directly equipment demonstrate quality management goals based on QFD.

According to all above, equipment demonstrate quality management goals are confirmed, and the relative importance degree between goals can be easily distinguished, which offer foundations for designing equipment quality management integrated plan scheme.

3) Equipment quality management integrated plan scheme design based on Knowledge-Petri net

A Petri net is an important analytical and modeling tool, can denote the static structure and dynamic characteristic by place, transition, arcs and token, and has the capacity for modeling and planning an equipment quality management system. This paper describes equipment quality management integrated plan scheme based on Knowledge-Petri net, which can integrate equipment quality management resources and elements, and show scientifically equipment quality management plan functions and demands.

Knowledge-Petri net is a modeling method of integrating knowledge expert system to the Petri net. On the one hand, it can enhance the formalization expressive force of Petri net, simplify description process of Petri net; On the other hand, it can adjust dynamic quality management plan contents and time. Knowledge expert system stores large number of static data and dynamic data about equipment quality management by the incident chain-list. Static data contain Clock Set, Person Set (member type, management member base, and expert base), Goal Set, Index Set, and Content Set; dynamic data contain Fire Condition Set, Storage Set and Scheme Adjustable Set. The incident chain-list is shown in Fig.3 [14].

Incident chain-list can reflect the instances of place and transition at the real time, and store correlative information. Therefore, place nodes and transition nodes of Petri net model in Fig. 4 integrated with above incident chain-list, which is Knowledge-Petri net model of equipment quality management integrated plan. This model reflects fully plans and arranges of equipment quality management participants in total life cycle. Meanings of every node variable of equipment quality management integrated plan are shown in Table2.

Incident Node Number

Clock Set

Person Set

Goal Set

Index Set

Content Set

Transition Node Number

Fire Condition Set

Stroge Set

Scheme Adjustable Set

Figure 3. Incident chain-list

IV. CONCLUSION Equipment quality management integrated plan is a useful

theory seeks of innovating equipment quality management mode. This paper establishes equipment quality management integrated plan conceptual model, and represents detailed implement measures, which offer novel thought for improving equipment quality management plan method. But lots of detail problems about equipment quality management can’t be still solved in this paper. For example, the dynamic characteristic problem of equipment quality management integrated plan Knowledge-Petri net model, plan management interface problem between phases. Those will be our research direction in the future.

TABLE II. PETRI NET MODEL NODE VARIABLE MEANINGS EXPLANATION

Place element Meanings Transition

element Meanings

P0 Equipment demonstrate preparation T0 Constitute demonstrate group P1 Requirement analysis T1 Requirement analysis quality assess P2 Feasibility demonstrate T2 Feasibility demonstrate quality assess

P3 Pertinence Requirement analysis T3 Pertinence Requirement analysis quality assess

P4 Develop total request demonstrate T4 Demonstrate quality synthetically assess P5 Primary products develop T5 Primary products trial and appraisal assess P6 Sample develop T6 Sample trial and appraisal assess P7 Small batch production T7 Military delegate quality supervision P8 Large batch production requirement T8 Requirement return receipt P9 Large batch production T9 Military delegate quality supervision P10 Equipment deployment T10 Equipment deployment quality supervision P11 Equipment using T11 Equipment using quality supervision P12 Equipment maintain T12 Equipment maintain quality supervision P13 Equipment deposit T13 Equipment deposit quality supervision P14 Equipment retire and scrap

Figure 4. Equipment quality management integrated plan Petri net model

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