Prototyping at Slack

Over the years at Slack — usually during periods of high growth — teams have defaulted to working in a waterfall where an idea is proposed and researched, then designed or spec’d, then built, in that order. It’s not the most efficient way to work and as a company grows — with more people involved…

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Kyle Stetz
•10 min read•advanced•
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Overview

The article discusses the prototyping process at Slack, emphasizing its importance in breaking away from traditional waterfall methodologies. It outlines a framework for prototyping that includes hypothesizing, executing, and evaluating, aimed at fostering iterative development and learning.

What You'll Learn

1

How to effectively use prototyping to validate assumptions in product development

2

Why documenting the prototyping process is crucial for future reference

3

When to pivot from a prototype based on evaluation results

Key Questions Answered

What is the prototyping process at Slack?
The prototyping process at Slack consists of three main steps: hypothesizing, executing, and evaluating. This framework allows teams to validate assumptions, gather feedback, and make informed decisions before committing to full-scale development.
How does prototyping help in product development?
Prototyping helps in product development by allowing teams to explore ideas quickly and safely. It provides a structured way to test assumptions and evaluate potential solutions, which can prevent costly mistakes later in the development process.
What are the benefits of documenting the prototyping process?
Documenting the prototyping process is beneficial as it creates a historical record of decisions made, outcomes achieved, and lessons learned. This documentation can serve as a valuable resource for future projects and help teams avoid repeating past mistakes.

Key Actionable Insights

1
Incorporate prototyping into your development workflow to validate ideas early.
Using prototypes allows teams to test concepts without the commitment of full development, reducing the risk of costly errors later on.
2
Establish clear success and failure criteria before starting a prototype.
Defining what success looks like helps guide the evaluation process and ensures that the team remains focused on the objectives of the prototype.
3
Encourage a culture of experimentation and learning from failure.
Recognizing that failure is a part of the prototyping process can foster a more innovative environment where teams feel safe to explore new ideas.

Common Pitfalls

1
Failing to define success and failure criteria can lead to ambiguous evaluations.
Without clear criteria, teams may struggle to determine whether a prototype has met its objectives, making it difficult to decide on the next steps.
2
Not documenting the prototyping process can result in lost insights.
If teams do not capture what they learned during prototyping, future projects may miss valuable lessons that could inform better decision-making.