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Inventory managagement 101 – How reorder point control works

November 12th, 2008 | By: Martin Arrand

This is basic stuff, but as usual there is a lack of clear and concise explanations of this on the web. It is also very important, as most methods of inventory control can be reexpressed as some form of reorder point method. Hence this simple introduction. I have also prepared a Reference Sheet that summarises […]

Canals cut emissions – and congestion – for Tesco

November 12th, 2007 | By: Martin Arrand

While working on a European distribution strategy assignment for a client earlier this year, I did some work on how to use lower-carbon multi-modal transport and still get goods to the customer on time. So I was interested to read about Tesco’s latest innovation – bringing imported wine down Manchester Ship Canal by barge. My […]

What level of availability should my warehouse give?

September 13th, 2007 | By: Martin Arrand

This is a question that arises with frightening regularity. Although we generally want both availability and stock turn to continue improving over the long term (and there are various methods of achieving that), nonetheless there are some theoretical limits to those numbers, together with a requirement to decide the availability target for right now. Let’s […]

10 ways to reduce inventory and improve service – part 2

August 30th, 2007 | By: Martin Arrand

This is the second part of a two-part post. Part 1 was posted last week. 6. Optimise stock over the range The same investment in stock can produce better or worse levels of availability. This is intuitively obvious if we think of some reductio ad absurdum examples: all of our stock invested in a single […]

10 ways to reduce inventory and improve service – part 1

August 23rd, 2007 | By: Martin Arrand

This was prompted by a question on the CILT’s eDiscussion forum. I thought the topic deserved a little more room for explanation, so here are my top ten tactics for simultaneous inventory reduction and service improvement. I have divided this into two posts – five tactics today, the next five coming up in part 2. […]

Overstock in pure Pull supply chains

August 17th, 2007 | By: Martin Arrand

I have had a couple of conversations recently that have led me to think about how much overstock we might expect in a Pull supply chain even under fairly idealistic conditions. The first was with a colleague working on a redesign of a warehouse in which a large number of products had stock outside of […]

DRP and Deployment: an interesting 2-tier problem

April 4th, 2007 | By: Martin Arrand

I lent a hand yesterday at a workshop run with a client to aid configuration of an upgrade to their ERP system. The workshop, which focussed on DRP (Distribution Resource Planning) and Deployment (how we turn DRP plans into purchase orders and stock transfers), threw up the following problem. Manufacturer to Packer to Distribution Centre […]

Teach Yourself Supply Chain Management in Ten Years

May 11th, 2011 | By: Martin Arrand

(with apologies to Peter Norvig) Some time ago, the wise and well-respected computer scientist Peter Norvig wrote an article called “Teach Yourself Programming in Ten Years”. I read it recently and found it so full of good sense I couldn’t resist taking the spirit of Norvig’s thoughts and applying them to supply chain management. Norvig’s […]

Birth of Lean Review – Free download Taiichi Ohno Chapter

May 12th, 2009 | By: Martin Arrand

A lengthy post today that’s been in the pipeline for a while. The Lean Enterprise Institute have published an English translation of The Birth of Lean, recounting the experiences of the early Toyota practitioners, and how their experiences shaped what became Lean methods and thinking. The introduction and first chapter are available as a free […]

Cyclone Nargis and the Sichuan earthquake: emergency logistics coordination and the politics of paperwork

November 4th, 2008 | By: Martin Arrand

The CILT‘s Humanitarian and Emergencies Logistics Professionals (HELP) Forum met again on Tuesday last week (28 Oct 2008). It was another interesting session, so I thought I would post a brief report (with a long title). My apologies if I have mangled any of the following in transcribing my notes. For those that don’t know, […]