Ingenieur Vol.79 July-Sept 2019 ingenieur 2019 july-sept | Page 60

INGENIEUR Figure 3: Model of Concurrent Engineering (CE) (by Olsson) i. Scrap product for parts that can be reprocessed to perform similar functions or for other applications. ii. Reusing by-products and process residue or recycling utilities such as water, air and steam. iii. Product waste that can be quickly or naturally degraded and returned to the ecosystem safely. iv. Product is made of non-hazardous substances which should not contaminate the environment. v. Product should not cause contamination to environment when it is being used or operated. Traditionally, product design is performed in a sequential process commonly known as Serial Engineering (SE) in which each design stage starts when the previous ones are completed. The disadvantages of SE are that it is a time-consuming process, with a risk of miscommunication among various departments and possibly not meeting design needs. To overcome these, an integrated design method called Concurrent Engineering (CE) is widely used. CE is an inclusive approach where personnel with different competencies and from different departments like marketing, design, production and finance come together and contribute to the same project. Figure 3 illustrates a CE model in product design. 6 58 VOL VOL 79 55 JULY-SEPTEMBER JUNE 2013 2019 Challenges In the beginning, the introduction of mass production was to produce goods fast and in large volumes to meet ever-increasing market demand. Product developers focused on functional product design strategies to create products mainly to meet the needs, often neglecting the effects on the environment. The supporting infrastructure and processes were also established mainly based on these strategies. The motives were to enrich organisations and guarantee existence as what was professed by Eliyahu Moshe Goldratt, the creator of Optimised Production Technique – “The real truth of the existence of any business organisation was to make profit, others were secondary.” Therefore, to integrate sustainability initiatives, product developers may encounter challenges such as: i. lack of investment to start up the integration of environmental factors into the existing product development strategy. Even if investment is available, cost is eventually added to the product that the buyer may need to bear, making it less competitive. ii. lack of personnel who are adequately trained to design eco-friendly products. iii. lack of commitment to search for and create technology that can support sustainable product initiatives.