lean-manufacturing 1.8

No project description provided

Lean manufacturing for Python

• Use lean manufacturing concepts to optimize python workflow.
• Organize and access your workflow through a mongodb local installation.
• Make your relevant functions independent from each other.
• Configure your functions through mongodb while your scripts are running.
• Measure setup duration, process duration and lead time.
• Monitor the status of each worker in real time.
• Schedule running times and periods

The lean principles behind it

• Define value for the customer
• Determine the value stream for each product
• Create a free flow of materials and a backwards flow of information
• Implement a pull system in the costumer-supplier relationship
• Continously pursue perfection in the process

General concept

Requirements

You'll need a localhost default installation of the community version of MongoDb (i.e. accessible at mongodb://localhost:27017).

This is a great and easy-to-use database, completely free. Please see https://www.mongodb.com/docs/manual/installation/ if you need help with the installation.

Not required, but useful

Mongodb Compass is a free software from mongodb that allows you to visually edit your mongodb databases. Please see https://www.mongodb.com/products/compass if you want to download it.

Usage

Syntax

@Lean.value_stream(
    value_stream,
    supplier = <dict>,
    client   = <dict>,
    schedule = <str>
)

supplier = {
    list: <list>        # for supplier as list, instead of db values
    uri: <str>,         # for remote connection only
    db:  <str>,         # for remote connection only
    collection: <str>,
    unique: <str>,
    aggregation: <list>,
    order: <int>,
    regex: <str>,
    gt: <int>,
    content: ['@all', '@inventory', '@supplier', '@existing'],
}

client = {
    uri: <str>,         # for remote connection only
    db:  <str>,         # for remote connection only
    collection: <str>,  # for remote connection only
    unique: <str>,
    update: <boolean>
}

schedule: <str> # choose from '@hourly', '@daily', '@weekly', '@monthly', '@annually'

Getting the input from a supplier remote mongodb installation

@Lean.value_stream('my_value_stream',
    supplier={
        uri: 'your mongodb uri',
        db: 'db_name',
        collection: 'collection_name',
        aggregation: [{'$project': {'_id': 0}}],
        unique: 'field_a'
    },
    client={
        unique: 'field_b'
    }
)

def my_first_process(input, **config):
    
    # do something with input
    output = [element for element in input]

    return output

Getting the input from another supplier process

@Lean.value_stream('my_value_stream',
    supplier={
        collection: 'my_value_stream.my_first_process',
        unique: 'field_b'
    },
    client={
        unique: 'field_c'
    }
)

def my_other_process(input, **config):

# do something with input
output = [element for element in input]

return output

Updates

1.7

• Registers availability by the minute.

1.8

• Syntax improvement