Seleksi Konsep Debrina's Blog as Industrial Engineer Perancangan Produk

(1)

PRODUK

Chapter 9

(2)

(3)

Concept Development & Selection Process

• _{Product concept selection}

_{is a decision process, in}

(4)

Challenges

• _{How to choose the best concept of abstraction?}

• _{How to embrace all inputs (likings and concerns)}

from the whole team in the decision process?

• _{How to make use of good attributes of otherwise}

weak concept designs?

(5)

Concept Selection Approaches

• _{External decision}

• _{By use of an external group of customers, clients, etc.}

• _{Product champion & intuition}

• _{By an influential member of the development team}

• _Multi-voting

• _{Asking each member to pick a number of concepts and pick the one with}

most votes.

• _{Pros and cons}

• _{The team list the strengths and weakness of each concept.}

• _{Prototype and test}

• _{Build and test prototype for each concept and select based on the test data.}

• _{Decision metrics}

• _{The team rates each concept against selection criteria with varying}

(6)

(7)

(8)

Two stages of concept selection

• _{Concept screening}

• _{To quickly narrow the number of concepts and to}

improve the concepts

• _{The Pugh concept selection method}

• _{Concept scoring}

• _{weighs the relative importance of the selection}

criteria

• _{focus on more refined comparisons with respect to}

(9)

(10)

Concept Selection Process

Prepare the Matrix

• _Criteria

• _{Reference Concept}

• _Weightings

Rate Concepts

• _{Scale (– 0 +) or (1–5)}

• _{Compare to}

Reference Concept or

Values

Rank Concepts

• _{Sum Weighted Scores}

Combine and

Improve

• _{Remove Bad Features}

• _{Combine Good}

Qualities

Select the Best

Concept

• _{May Be More than}

One

• _{Beware of Average}

Concepts

Reflect on the

Process

• _Continuous

(11)

Concept Selection Example

(12)

Mission Statement

• _{Product description:}

• _{Reusable syringe with precision dosage control}

for outpatient use.

• _{Primary market}

• _Elderly

• _{Major features:}

• _{Accuracy of dose metering}

(13)

Need analysis

• _{Ease of handling}

• _{Ease of use}

• _{Readability of dose settings}

• _{Accuracy of dose metering}

• _Durability

• _{Ease of manufacture}

• _Portability

(14)

• _{Batas daerah tangkai 1/11 rongga}



penempatan pendorong 1/11 dari

posisi alat penyedot

Konsep B:

Rubber Brake

• _{Putar alat penyedot 90° untuk}

mengatur dosis atau menyimpan

penyedot

Konsep C: Roda Bergigi Searah

(

Ratchet

)

• _{Putar alat penyedot 90° dan dorong}

ke belakang untuk mengatur dosis.

Balikkan untuk memasang

penghubung

Konsep D:

Plunge Stop

(Penyedot

Henti)

• _{Putar klep ke depan untuk mengatur}

(15)

pengatur dosis, tarik alat

penyedot dan dorong untuk

menyuntikkan

Konsep F: Pengungkit/Tuas

• _{Mengatur dosis dengan mendorong}

tuas ke depan dan menyuntikkan

dengan mendorong tuas ke belakang

Konsep G:

Drill Screw

(Sekrup

Pemutar)

• _{Mengatur dosis dengan memutar}

tombol pengatur dosis,

(16)

(17)

Screening stage

(18)

(19)

(20)

(21)

(22)

Scoring stage

1. REFINE Pugh’s Matrix

• _{Criteria – dekomposisi kriteria}

• _{contoh: kemudahan penggunaan  kemudahan penyuntikan, kemudahan}

untuk dibersihkan, kemudahan untuk diisi

• _{ADD Weightings}

2. Rate Concepts

• _{REFINE Scale}

• _{1 – sangat buruk dibandingkan referensi}

• _{2 – buruk dibandingkan referensi}

• 3 – sama seperti referensi

• 4 – lebih baik dari referensi

• 5 – sangat lebih baik dari referensi

(23)

Scoring stage

3. Rank Concepts

• _{Sum Weighted Scores}

Dimana:

r_ij = nilai konsep j untuk kriteria w_i = bobot untuk kriteria I n = jumlah kriteria