Business
1,528 items in 12 lists
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Benford's law en.wikipedia.org
Digit distribution can be a signal of accounting fraud.
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Allen's interval algebra en.wikipedia.org
Implementing usage-based pricing is tricky, and this algebra will help you organize temporal reasoning. Also see this Stack Overflow question with clean schema.
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Address Verification System en.wikipedia.org
A system checking the matching of customer's billing addresses with the one associated with the credit card.
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£sd computing en.wikipedia.org
The IBM 1401 mainframe (1959) optionally supported pounds/shillings/pence (£sd) currency arithmetics in hardware.
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Electropedia: Tariffs for electricity electropedia.org
Before the cloud, there was another metered resource priced by its usage: electricity. Here is a detailed (and multi-lingual) taxonomy of its vocabulary from the International Electrotechnical Commission.
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Personalised pricing and EU law econstor.eu
Some cases of price personalisation are prohibited in EU due to consumer protection and data protection rules.
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EC2Instances.info ec2instances.info
💸 Easy Amazon EC2 Instance Comparison. Operated by Vantage as a free lead-gen surface for its commercial FinOps platform.
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EU eInvoicing ec.europa.eu
European standard on electronic invoice.
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So, you want to learn Bookkeeping! dwmbeancounter.com
Focus on the daily operations of recording and maintaining the transactions of a business.
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Optimizing payments with machine learning dropbox.tech
Describes a classic payment workflow, then how machine learning can replace hard-coded business rules and fine-tune the payment failures/retries loop to increase the success rates of charges.
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Accounting for Developers 101 docs.google.com
A general introduction to history and vocabulary of accounting.
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DigitalOcean Billing changelog docs.digitalocean.com
All the latest billing updates on DO.
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Idempotency in the context of payments developers.google.com
“Idempotency prevents race conditions. Idempotency dictates that multiple identical requests from the same client do not result in a different final state.”
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Books, an immutable double-entry accounting database service developer.squareup.com
Explain the basic data model of a double-entry accounting system relying on Google Spanner for internal use at Square.
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Apple In-app purchase Human Interface Guidelines developer.apple.com
Guide and recommendation on how to make auto-renewable subscriptions user-friendly.
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Detax detax.framer.website
A site mockup of an tax avoidance product for small businesses.
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Deconstructing Amazon EC2 Spot Instance Pricing dants.github.io
“Cloud providers possessing large quantities of spare capacity must either incentivize clients to purchase it or suffer losses. Amazon is the first cloud provider to address this challenge, by allowing clients to bid on spare capacity and by granting resources to bidders while…
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A Survey of Profit Optimization Techniques for Cloud Providers cs.newpaltz.edu
“The strategy of improving user service quality is discussed first, followed by the pricing strategy for cloud resources to maximize revenue.”
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Product Development as Iterated Taste commoncog.com
AWS sacrificed the simplicity of subscription pricing for S3 and went instead with a safe cost-following strategy because they had no clue how the users will use their service.
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The Games People Play With Cash Flow commoncog.com
“Malone created a new accounting metric, something he called ‘earnings before interest, depreciation, and taxes’, or EBITDA.” This is how a cable company CEO made sense of cash flow, like real-estate business did. The article starts with this example and describes other cash…
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GCP improved account management policies to better support customers cloudplatform.googleblog.com
Or why relying too much on fraud automation might lead to disgruntled users.
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Cloudorado cloudorado.com
💸 A comparison matrix which use ECU (Amazon's vCPU) as a CPU power measure unit. Operated by Cloudorado as a commercial cloud-comparison product.
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GCP Product Catalog cloud.google.com
All GCP SKUs available as an API.
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More choice, less complexity: New Compute Engine pricing options on tap cloud.google.com
A wrap-up of recent GCP pricing features.
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GCP billing release notes cloud.google.com
Latest changes of GCP billing features.
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GCP Cost Forecast cloud.google.com
An example of consumption trend line for resource consumption.
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Some credit and debit card companies have "updating service" that allows new account numbers and expiry dates to be shared with merchants. Visa's implementation is called VAU and Mastercard's is ABU.
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Which has a higher conversion rate: A single long ecommerce checkout form or a multi-step one? capitalandgrowth.org
Focus first on other things in the cart, like easing anxiety and second-guessing by adding reassurance (trust marks, testimonials) near the credit card and completion steps, as well as some guarantee language that you may have used earlier in the product exploration process.
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How Candy Japan got credit card fraud somewhat under control candyjapan.com
Suggestions involved either warning signals for trying to guess which orders might be fraud, or countermeasures to try to make things harder for the fraudsters.
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The vanished grandeur of accounting bostonglobe.com
Accounting paintings were a significant genre in Dutch art.
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Handling system failures during payment communication blogs.dropbox.com
Dropbox's experience trying to account for an unreliable payment provider.
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Peak Detection in the Python World blog.ytotech.com
Simple way to detect outliers.
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A (shallow) dive into the American banking system blog.yossarian.net
Collection of miscellaneous notes primarily focused on the common cases of routable accounts, i.e. checking and savings.
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UPI 101: The Basics blog.setu.co
“In this article, we will learn about India's Unified Payments Interface. A four-year-old payment scheme that has been accounting for 40-45% of digital payments across India.”
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Cargo cult data science blog.richardweiss.org
“Data science is best viewed as a form of company culture, rather than a set of technologies. However, many firms will try to create that company culture by acquiring data-science technology, rather than working on their culture.”
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Moonpig: a billing system that doesn't suck blog.plover.com
Design decisions behind a billing and accounting system. Key takeaway: some companies still pays by checks; do not use floats; complex customer workflows; date and time issues; mutable data.
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The cup-of-coffee pricing fallacy blog.gingerlime.com
Explains why it is a sloppy analogy.
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Details on Expiring DigitalOcean Credits blog.digitalocean.com
The reason you have to add an time limit on credits: unused ones accounts as liabilities on our balance sheet.
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Digital Ocean's Update on Customer Shutdown Incident blog.digitalocean.com
Aggressively shutting down user servers is good from a business point of view to prevent fraudster abusing free resources, until it's not.
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Engineering and Operations in the Bell System bitsavers.trailing-edge.com
Starting at page #445, the "10.5 Billing Equipment and Systems" section describe the history and technical evolutions of Bell's phone calls metering and pricing.
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KYC and AML: beyond the acronyms bitsaboutmoney.com
KYC is nuanced and fuzzy, because it is a stochastic process to reduce risk.
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Swift Codes bank.codes
Swift / BIC codes for personal use only.
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Reconciliation: A game designed to frustrate the player bam.kalzumeus.com
“Reconciliation is a business process which arises almost entirely because of a lack of structured data in the pipelines that convey money between businesses”. There are some hack to streamline the process, like adding an arbitrary discount to produce unique trailing decimals…
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Raising Prices is Hard backblaze.com
Backblaze post-mortem on raising prices on their main offer. They wanted to create an extension program based on credit system. This became a full-time job for a handful of their most senior engineers, and resulted in a six month project.
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AWS Cost Management announcements aws.amazon.com
The source of all new features added to the billing perimeter.
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Global VAT & GST on digital services avalara.com
List of countries requiring application of taxes on foreign provided online services.
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“The key idea of our algorithms is to use pricing signal to regulate user demand. One may argue that such an algorithm gives poor service to the user as it pushes tasks out of the queue in order to maximize cloud broker's profit.”
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Detecting fraudulent activity in a cloud using privacy-friendly data aggregates arxiv.org
Discusses a method to detect fraudulent activity (launching DDoS attacks, Bitcoin mining, …) by using non-intrusive, privacy-friendly data: billing data.
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Integer percentages as electoral falsification fingerprints arxiv.org
In the same spirit as above, this paper show that frequency of reported round numbers in election is a signal of man-made anomalies. Might be applicable in some fraud-fighting area.
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5 things I learned while developing a billing system arnon.dk
A great introduction on all the various aspects of a billing system, from currency to invoices, including great illustrations on the logic of changing plans. All these topics are detailed in dedicated sections below.
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